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mechanical constraints

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Published: 01 January 1997
Fig. 13 Mechanism loads and constraints displayed with results graph. Courtesy of Aries Technology More
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001352
EISBN: 978-1-62708-173-3
... 250 MPa (35 ksi) ( Ref 38 ). The high tensile strength of the joint is due to the mechanical constraint provided by the stronger base metal, which restricts transverse contraction of the interlayer ( Ref 36 , 37 , 39 , 40 , 41 , 42 , 43 , 44 , 45 ). The constraint establishes radial (triaxial...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005556
EISBN: 978-1-62708-174-0
..., the UTS of silver-interlayer solid-state welds between maraging steel base metals has been reported to be nearly 800 MPa (120 ksi) ( Ref 32 , 33 ), whereas the UTS of the bulk silver is only about 250 MPa (35 ksi) ( Ref 38 ). The high tensile strength of the joint is due to the mechanical constraint...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002441
EISBN: 978-1-62708-194-8
.... The article provides information on the applications of CAD systems, including integrated product development, drafting and product documentation, product visualization, mechanical analysis, and numerical control programming. algebraic constraints attribute constraints computer-aided design computer...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003305
EISBN: 978-1-62708-176-4
... by explaining the ductile-to-brittle fracture transition and by correlating KId, KIc, and Charpy V-notch impact energy absorptions. It highlights the effects of constraint, temperature, and loading rate on the fracture transition. The article discusses the applications of fracture mechanism in limiting...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001375
EISBN: 978-1-62708-173-3
... of the joint is due to the mechanical constraint provided by the stronger base metal, which restricts transverse contraction of the interlayer. The constraint establishes radial (triaxial) stresses that inhibit the development of shear stresses within the joint, thereby decreasing the effective stress...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001275
EISBN: 978-1-62708-170-2
... the influence of substrate microstructure on the performance of coating deposits, the mechanism of substrate protection supplied by chromate coatings, and the development of new replacement technologies in response to the environmental constraints that have developed around the use of chromium-base compounds...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006331
EISBN: 978-1-62708-179-5
... Abstract In cast iron, residual stresses normally arise due to hindered thermal contraction, meaning that they are associated with the presence of constraints that prevent the natural, free volumetric variation of the material upon solid-state cooling. This article explains their mechanism...
Book Chapter

By Greg Kress
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003392
EISBN: 978-1-62708-195-5
..., and environmental constraints. mechanical properties composites repeatability cost size damage tolerance durability environmental constraints design criteria DESIGN CRITERIA are the decisive quantified goals that a product must attain. A product needs to achieve a certain level of safety, cost...
Series: ASM Handbook
Volume: 24A
Publisher: ASM International
Published: 30 June 2023
DOI: 10.31399/asm.hb.v24A.a0006951
EISBN: 978-1-62708-439-0
... of cells within an external boundary. It describes how manufacturing constraints influence achievable feature resolution, dimensional accuracy, properties, and defects. It also discusses the mechanical behavior of architected cellular materials and the role of additive manufacturing in their fabrication...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002453
EISBN: 978-1-62708-194-8
... Function and constraints Maximize (a) Bus bars Minimum life-cost; high-current conductor 1/ρ e ρ C m Electromagnet windings Maximum short-pulse field; no mechanical failure σ y Maximize field and pulse-length; limit on temperature rise C p ρ/ρ e Windings, high-speed...
Image
Published: 01 December 2009
Fig. 14 (a) Theoretical molar contributions of the most important reacting species to the deposition mechanism. Top: 10 species and 13 reactions (Source: Ref 135 ). Bottom: 18 species and 33 reactions. (b) Calculated deposition-rate profiles obtained from the two different reaction mechanisms More
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006560
EISBN: 978-1-62708-290-7
... design, process, and material properties ( Ref 14 , 15 ). The design rules provide acceptable design parameter ranges of specific design features, joints, or mechanisms when printing these features by a specific AM process ( Ref 16 , 17 ). Most design rules focus on constraints during the manufacturing...
Series: ASM Handbook
Volume: 24A
Publisher: ASM International
Published: 30 June 2023
DOI: 10.31399/asm.hb.v24A.a0006947
EISBN: 978-1-62708-439-0
..., design opportunities, manufacturing practices, supply chains, and even business models. It presents contrasting perspectives on DFAM, followed by a discussion on more general and overarching opportunistic design methods and on design for constraints, similar to conventional DFM. It concludes...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002446
EISBN: 978-1-62708-194-8
... civil, mechanical, electrical, and so forth, and often involves trade-offs based on the requirements of each application. The idea of design optimization suggests that for a given set of possible designs and design criteria, there exists a design that is the best or optimal. Optimization is a part...
Image
Published: 01 January 1997
Fig. 12 Multipoint constraints. (a) Joining incompatible elements. If u and v denote displacements in the x and y directions, respectively, and subscripts refer to the nodes, then u 10 = ( u 2 + u 3 )/2 and v 10 = ( v 2 + v 3 )/2. This assumes that node 10 is halfway More
Image
Published: 01 December 2009
Fig. 12 Multipoint constraints. (a) Joining incompatible elements. If u and v denote displacements in the x and y directions, respectively, and subscripts refer to the nodes, then u 10 = ( u 2 + u 3 )/2 and v 10 = ( v 2 + v 3 )/2. This assumes that node 10 is halfway More
Series: ASM Handbook
Volume: 24A
Publisher: ASM International
Published: 30 June 2023
DOI: 10.31399/asm.hb.v24A.a0006949
EISBN: 978-1-62708-439-0
...) but also satisfy process constraints. According to DFMA standards ( Ref 1 ), two parts that can be consolidated should satisfy conditions such as: There is no relative motion between the two parts. The parts are not made of different materials. The consolidation should not obstruct the assembly...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006800
EISBN: 978-1-62708-329-4
.... Mechanical engineers design a wide variety of components, such as pressure vessels, vehicles, and machinery of all types. These designs often contain moving parts and use materials with highly specific performance requirements. Materials selection can include all materials and processes. Many codes...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006775
EISBN: 978-1-62708-295-2
... (and perhaps some hcp materials), which show a strong temperature dependence of the yield strength. Fracture mechanics indicates that important variables in geometry-induced constraint are section thickness, crack length, and crack-tip radius. For some combinations of these variables, constraint is incomplete...